The Queen was thanked for creating “very precious memories” for seriously ill children as she hosted a tea party and treasure hunt for six youngsters at Clarence House this afternoon. Camilla served tea and cake, helped the youngsters find clues as they searched for chocolate treasure and handed out party bags to the children, who are supported by the charity Dreams and Wishes, as she opened up her London home to them for the afternoon. The festivities were scheduled to take place in the garden,